Mahsin, Mahsin. “MENINGKATKAN PRESTASI BELAJAR IPS MATERI KEDATANGAN BANGSA BARAT KE INDONESIA MELALUI MODEL PROBLEM BASED LEARNING”. SOSIO EDUKASI Jurnal Studi Masyarakat dan Pendidikan 4, no. 2 (June 29, 2021): 58–64. Accessed July 22, 2024. https://e-journal.hamzanwadi.ac.id/index.php/sosedu/article/view/1566.